1) What is the main function of the circulatory system? a) Transport nutrients b) Digest food c) Produce hormones d) Store energy 2) Which organ pumps blood throughout the body? a) Liver b) Heart c) Kidney d) Lung 3) What type of blood vessels carry blood away from the heart? a) Veins b) Arteries c) Capillaries d) Venules 4) What is the largest artery in the human body? a) Aorta b) Pulmonary c) Carotid d) Femoral 5) Which component of blood carries oxygen? a) Platelets b) Red blood cells c) White blood cells d) Plasma 6) What is the liquid part of blood called? a) Serum b) Plasma c) Hemoglobin d) Lymph 7) Which blood vessels have valves? a) Arteries b) Veins c) Capillaries d) Arterioles 8) What is the function of white blood cells? a) Carry oxygen b) Fight infections c) Clot blood d) Transport nutrients 9) What is the smallest type of blood vessel? a) Arteries b) Veins c) Capillaries d) Arterioles 10) Where does the exchange of gases occur in the circulatory system? a) Arteries b) Veins c) Capillaries d) Heart 11) What is the function of platelets? a) Transport oxygen b) Fight infections c) Clot blood d) Carry nutrients 12) Which chamber of the heart receives oxygenated blood from the lungs? a) Right atrium b) Left atrium c) Right ventricle d) Left ventricle 13) What separates the left and right sides of the heart? a) Septum b) Valve c) Atrium d) Ventricle 14) Which blood type is known as the universal donor? a) AB+ b) O- c) A+ d) B- 15) What is the normal resting heart rate for adults? a) 60-100 bpm b) 40-60 bpm c) 100-120 bpm d) 120-140 bpm 16) Which blood vessel carries deoxygenated blood to the lungs? a) Pulmonary artery b) Aorta c) Vena cava d) Pulmonary vein 17) What is the main component of plasma? a) Proteins b) Water c) Salts d) Glucose 18) Which part of the heart pumps blood to the entire body? a) Right atrium b) Left ventricle c) Right ventricle d) Left atrium 19) What is the term for high blood pressure? a) Hypotension b) Hypertension c) Arrhythmia d) Bradycardia 20) Which blood vessels return blood to the heart? a) Arteries b) Veins c) Capillaries d) Arterioles

Level 3 Anatomy and Physiology: Circulatory System Quiz

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